Test bench for performance of hybrid power vehicle transmission system

Abstract

A hybrid driven vehicle transmission system performance test platform includes engine, speed torque sensor, ISG motor, transmission link support box, cross universal joint, electricity dynamometer, fuel consumption meter, control system, and others. The speed torque sensor is installed between the engine and the ISG motor, and the ISG stator connects to the clutch, and the transmission link support box and ISG motor stator are installed together to the engine installation surface; in the transmission link support box installs the transmission shaft, and the spline of the transmission shaft connects with the spline in the clutch friction chip, and the flange end of the transmission shaft connecting with the cross universal joint, the cross universal joint connecting with the power dynamometer. The invention integrates engine, motor and control system, increasing the speed and torque sensor and the transmission link support box, reducing the torque fluctuation in the transfer process, and it can respectively control the engine, motor speed and torque, and measure the parameters of system fuel consumption, battery voltage, current, charge state, and others.

Description

technical field [0001] The invention relates to a transmission test technology of a hybrid power transmission system, in particular to a performance test bench for a transmission system of a hybrid power vehicle. Background technique [0002] A hybrid vehicle is driven by an engine and an electric motor, which can recover the energy of the vehicle during braking. It combines the advantages of fuel vehicles and pure electric vehicles, and has good fuel economy, power and emission performance. It has a good market Electric vehicles with promising application prospects have become a hot spot in research and development at home and abroad. [0003] The performance test bench of hybrid power transmission system is an important tool to study the performance of hybrid power transmission system components, and it is also the basis for the research and development of hybrid power transmission system. Test bench for engine / electric motor powertrain performance. The hybrid electric v...

AI Technical Summary

Problems solved by technology

The hybrid electric vehicle power transmission reliability test bench described in the invention patent CN 1800804 has similarities with this patent in terms of test objects, but the difference is that the two structures are different, and the test methods and purposes are different: Patent CN 1800804 Mainly used for the reliability test of the hybrid power system, without measuring the fuel consumption of the system, the fuel economy of the power system cannot be evaluated, and the fuel economy of the system is very important for the hybrid power system; at the same time, the engine and ISG motor There is no speed and torque sensor between them, the system can only measure the speed and torque of the engine / ISG motor powertrain system, but cannot measure the individual torque of the engine or ISG motor, and the torque distribution control of the engine / ISG motor in the hybrid power system is very important. Important; the ISG motor only relies on the crankshaft flange for cantilever support, without a separate auxiliary support box similar to the transmission, and without adding a clutch with a damping effect, which makes the test system poorly supported and the torque output fluctuates greatly , resulting in a different

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